The Used Luxury Sedan That’s Actually Worth Buying

7 minutes reading

Sunday, 13 Sep 2026 10:01 0 9 autotech

Used luxury sedans have a reputation problem, and most of the time it’s earned. Buyers chase the badge, then discover the running costs that come with it. Buyers can expect five-figure repair bills, warranties that expired years before the loan did, and a resale curve that makes trade-in day sting twice. But there’s an exception hiding in plain sight. This three-year-old Genesis flagship sedan has absorbed the same brutal depreciation as its German rivals, except this time, the car underneath the discount doesn’t come with the baggage.

Table of Contents

Why More Luxury Sedans Aren’t Worth Buying Used

Front 3/4 shot of 2023 Mercedes-Benz S-Class S 580 4MATIC driving

Mercedes-Benz

The 2023 Genesis G90 Delivers Flagship Luxury Without The German Headaches

First-Class Cabin, 409 Horsepower, And Infotainment That Still Feels Current In 2026

The 2023 Genesis G90 doesn’t ask for a reliability trade-off in exchange for feeling like a proper flagship. The standard 3.5T trim runs a twin-turbocharged 3.5-liter V6 making 375 horsepower and 391 pound-feet of torque, paired with an eight-speed automatic and standard all-wheel drive.

Step up to the 3.5T e-Supercharger and Genesis adds a 48-volt mild-hybrid system with an electric supercharger, pushing combined output to 409 horsepower and 405 pound-feet. That’s enough for a 0-60 mph run in 4.8 seconds, properly quick for a full-size luxury sedan that also weighs nearly 4,900 pounds and prioritizes ride comfort over lap times.

Comfort Focus That Shows Up Everywhere Else In The Car

A shot of the dashboard in a 2023 Genesis G90

The e-Supercharger trim adds air suspension, rear-wheel steering, and power-cooled massaging rear seats, while even the base 3.5T ships with a panoramic sunroof, heated and cooled front seats, heated rear seats, and rear power sunshades as standard equipment. Reviewers who’ve spent real time in the car consistently describe the ride as smooth and the cabin as genuinely quiet, with steering and body control that stay composed through corners despite the car’s size.

The technology suite holds up just as well three model years later; a fully redesigned interior for 2023 means the G90’s infotainment layout, driver-assistance features, and materials quality don’t feel like they’re a generation behind what Genesis is selling new today—which isn’t something every used luxury sedan buyer can say about their car’s tech stack.

Where The G90 Makes Sense Financially After Its Biggest Depreciation Hit

Genesis G90 3.5 Liter V6 Twin-Turbo with 48V e-supercharger

Here is where the used-buying case gets interesting. The 3.5T e-Supercharger stickered at roughly $99,795 when new, and the base 3.5T started at $89,495. Three years later, Kelley Blue Book puts current resale value for a 2023 G90 at around $45,200, with a trade-in value near $37,700, a total drop of about $44,325, or 49 percent of its original value. Private-party asking prices land a bit higher, in the $45,500 to $47,700 range depending on trim and condition.

83 Percent Of Useful Life Left At Only 60 Percent The Original Price

Shot of 2025 Genesis G90 3.5T E-Supercharger rear seats in white

That’s a steep curve, but it’s also mostly finished. CarEdge’s depreciation analysis specifically flags the 2023 model year as the single best value year for the G90, noting that a buyer picking up a 2023 pays only about 60 percent of the original price while the car still retains roughly 83 percent of its useful life. So you’re essentially buying a car that stickered near $90,000 to $100,000 for somewhere in the mid-$40,000s, and the steepest part of the depreciation curve—the part that punishes early owners—has already happened to someone else.

A 2024 or a low-mileage 2021 can also work, according to CarEdge’s broader model-year comparison, but the 2023 is the sweet spot because it combines the newest cabin and tech update with the post-crash pricing. Compare that to a similarly aged S-Class or 7 Series, where the sticker starts $10,000 to $15,000 higher and the repair bills start almost immediately after purchase, and the G90’s discount stretches further than the raw depreciation percentage suggests.

Why 20 MPG Is The G90’s Biggest Flaw — And Why It Doesn’t Matter

None of the numbers above matter if the car is miserable to actually own, and that’s the last box the G90 checks. Between the extended powertrain warranty, below-average repair costs, and a redesigned interior that still feels current, a used 2023 G90 asks very little of its owner relative to what it delivers.

You’re not gambling on air suspension gremlins outliving a four-year warranty, and you’re not budgeting for German dealer labor rates on routine maintenance. The car’s biggest real-world compromise is fuel economy; EPA ratings land at 20 to 21 mpg combined depending on trim, which is unremarkable for the segment but not a dealbreaker for a flagship built to prioritize comfort and quiet over efficiency.

For a buyer who wants genuine flagship presence, twin-turbo power, a hushed cabin, massaging rear seats, and styling that doesn’t read as a budget alternative—without inheriting someone else’s looming repair bill—the 2023 G90 is difficult to beat on the used market right now. It’s not the safest reliability bet in the segment; Lexus still owns that title. But among full-size luxury sedans that have taken a genuine depreciation hit and come out the other side still under meaningful warranty coverage, the G90 stands alone. That’s the case for buying one now, while the pricing sweet spot is still open and before word gets around.